Originally Posted by GH41 Get Robar to put NP3 on it. This, without question. This will get you durability and protection. FIFY
Yep, np3 looks great https://www.m4carbine.net/showthread...R-RANGE-REPORT
Cerakote
A good friend of mine does Nickle Boron Nitride plating. Here's a pic of a Seekins upper and lower set he did: If it's something you'd be interested in, shoot me a PM and I'll get you in touch.
Pewter Cerakote is my recommendation
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